./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d6c389695f28ab23288d12eab23e55426fe9ec0f0b8fe9723cca18e00c3db8b7 ...................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 02:58:11,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 02:58:11,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 02:58:11,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 02:58:11,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 02:58:11,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 02:58:11,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 02:58:11,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 02:58:11,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 02:58:11,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 02:58:11,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 02:58:11,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 02:58:11,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 02:58:11,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 02:58:11,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 02:58:11,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 02:58:11,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 02:58:11,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 02:58:11,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 02:58:11,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 02:58:11,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 02:58:11,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 02:58:11,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 02:58:11,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 02:58:11,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 02:58:11,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 02:58:11,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 02:58:11,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 02:58:11,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 02:58:11,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 02:58:11,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 02:58:11,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 02:58:11,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 02:58:11,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 02:58:11,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 02:58:11,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 02:58:11,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 02:58:11,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 02:58:11,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 02:58:11,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 02:58:11,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 02:58:11,565 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 02:58:11,610 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 02:58:11,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 02:58:11,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 02:58:11,613 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 02:58:11,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 02:58:11,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 02:58:11,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 02:58:11,614 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 02:58:11,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 02:58:11,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 02:58:11,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 02:58:11,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 02:58:11,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 02:58:11,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 02:58:11,620 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 02:58:11,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 02:58:11,620 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 02:58:11,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 02:58:11,620 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 02:58:11,621 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 02:58:11,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 02:58:11,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 02:58:11,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 02:58:11,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 02:58:11,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 02:58:11,622 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 02:58:11,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 02:58:11,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 02:58:11,623 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6c389695f28ab23288d12eab23e55426fe9ec0f0b8fe9723cca18e00c3db8b7 [2021-10-29 02:58:11,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 02:58:11,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 02:58:11,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 02:58:11,968 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 02:58:11,969 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 02:58:11,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c [2021-10-29 02:58:12,055 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/data/9b9034487/954e87c3960e4a778f9a4cc222180832/FLAGd3ae112bc [2021-10-29 02:58:12,604 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 02:58:12,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c [2021-10-29 02:58:12,611 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/data/9b9034487/954e87c3960e4a778f9a4cc222180832/FLAGd3ae112bc [2021-10-29 02:58:12,951 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/data/9b9034487/954e87c3960e4a778f9a4cc222180832 [2021-10-29 02:58:12,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 02:58:12,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 02:58:12,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 02:58:12,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 02:58:12,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 02:58:12,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:58:12" (1/1) ... [2021-10-29 02:58:12,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c653f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:58:12, skipping insertion in model container [2021-10-29 02:58:12,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:58:12" (1/1) ... [2021-10-29 02:58:12,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 02:58:12,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 02:58:13,193 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c[520,533] [2021-10-29 02:58:13,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 02:58:13,221 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 02:58:13,242 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c[520,533] [2021-10-29 02:58:13,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 02:58:13,265 INFO L208 MainTranslator]: Completed translation [2021-10-29 02:58:13,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:58:13 WrapperNode [2021-10-29 02:58:13,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 02:58:13,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 02:58:13,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 02:58:13,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 02:58:13,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:58:13" (1/1) ... [2021-10-29 02:58:13,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:58:13" (1/1) ... [2021-10-29 02:58:13,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 02:58:13,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 02:58:13,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 02:58:13,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 02:58:13,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:58:13" (1/1) ... [2021-10-29 02:58:13,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:58:13" (1/1) ... [2021-10-29 02:58:13,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:58:13" (1/1) ... [2021-10-29 02:58:13,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:58:13" (1/1) ... [2021-10-29 02:58:13,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:58:13" (1/1) ... [2021-10-29 02:58:13,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:58:13" (1/1) ... [2021-10-29 02:58:13,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:58:13" (1/1) ... [2021-10-29 02:58:13,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 02:58:13,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 02:58:13,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 02:58:13,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 02:58:13,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:58:13" (1/1) ... [2021-10-29 02:58:13,348 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 02:58:13,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 02:58:13,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 02:58:13,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 02:58:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 02:58:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 02:58:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 02:58:13,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 02:58:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 02:58:13,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 02:58:13,728 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 02:58:13,729 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 02:58:13,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:58:13 BoogieIcfgContainer [2021-10-29 02:58:13,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 02:58:13,733 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 02:58:13,733 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 02:58:13,747 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 02:58:13,747 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:58:13" (1/1) ... [2021-10-29 02:58:13,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 02:58:13,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:13,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2021-10-29 02:58:13,806 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2021-10-29 02:58:13,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 02:58:13,808 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:13,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:13,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:58:13,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:13,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2021-10-29 02:58:13,987 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2021-10-29 02:58:13,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 02:58:13,988 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:13,988 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:14,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:58:14,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:14,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2021-10-29 02:58:14,205 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-10-29 02:58:14,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 02:58:14,206 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:14,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:14,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:58:14,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:14,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 25 states and 40 transitions. [2021-10-29 02:58:14,671 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 40 transitions. [2021-10-29 02:58:14,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 02:58:14,675 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:14,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:14,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 02:58:14,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:15,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:58:15,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:15,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 49 transitions. [2021-10-29 02:58:15,653 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 49 transitions. [2021-10-29 02:58:15,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 02:58:15,654 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:15,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:15,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 02:58:15,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:15,908 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 02:58:16,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:16,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 54 transitions. [2021-10-29 02:58:16,059 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2021-10-29 02:58:16,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 02:58:16,063 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:16,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:16,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:58:16,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:16,366 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 02:58:16,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:16,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 33 states and 58 transitions. [2021-10-29 02:58:16,926 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 58 transitions. [2021-10-29 02:58:16,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 02:58:16,927 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:16,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:16,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 02:58:16,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:17,173 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-29 02:58:18,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:18,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 43 states and 90 transitions. [2021-10-29 02:58:18,526 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 90 transitions. [2021-10-29 02:58:18,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 02:58:18,528 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:18,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:18,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:58:18,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:18,779 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-29 02:58:19,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:19,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 47 states and 100 transitions. [2021-10-29 02:58:19,662 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 100 transitions. [2021-10-29 02:58:19,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 02:58:19,664 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:19,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:19,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:58:19,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:19,926 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-29 02:58:20,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:20,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 49 states and 101 transitions. [2021-10-29 02:58:20,281 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 101 transitions. [2021-10-29 02:58:20,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 02:58:20,283 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:20,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:20,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:58:20,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:20,495 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-29 02:58:21,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:21,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 51 states and 108 transitions. [2021-10-29 02:58:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 108 transitions. [2021-10-29 02:58:21,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-29 02:58:21,005 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:21,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:21,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 02:58:21,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-29 02:58:22,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:22,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 53 states and 117 transitions. [2021-10-29 02:58:22,230 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 117 transitions. [2021-10-29 02:58:22,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-29 02:58:22,232 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:22,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:22,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 02:58:22,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:22,455 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-29 02:58:22,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 52 states and 112 transitions. [2021-10-29 02:58:22,925 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 112 transitions. [2021-10-29 02:58:22,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 02:58:22,927 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:22,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:22,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:58:22,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:23,247 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-29 02:58:23,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:23,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 52 states and 111 transitions. [2021-10-29 02:58:23,944 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 111 transitions. [2021-10-29 02:58:23,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-29 02:58:23,946 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:23,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:23,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:58:23,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:24,192 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-29 02:58:24,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:24,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 53 states and 119 transitions. [2021-10-29 02:58:24,647 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 119 transitions. [2021-10-29 02:58:24,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-29 02:58:24,649 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:24,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:24,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:58:24,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:24,834 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-10-29 02:58:25,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:25,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 54 states and 121 transitions. [2021-10-29 02:58:25,004 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 121 transitions. [2021-10-29 02:58:25,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-29 02:58:25,006 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:25,006 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:25,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 02:58:25,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:25,359 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-29 02:58:26,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:26,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 57 states and 127 transitions. [2021-10-29 02:58:26,268 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 127 transitions. [2021-10-29 02:58:26,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-29 02:58:26,270 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:26,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:26,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 02:58:26,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:26,626 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-29 02:58:28,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:28,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 68 states and 169 transitions. [2021-10-29 02:58:28,805 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 169 transitions. [2021-10-29 02:58:28,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-29 02:58:28,807 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:28,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:28,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 02:58:28,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:29,021 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-29 02:58:29,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:29,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 38 states and 63 transitions. [2021-10-29 02:58:29,746 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 63 transitions. [2021-10-29 02:58:29,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-29 02:58:29,750 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:29,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:29,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:58:29,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:29,976 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-29 02:58:30,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:30,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 38 states and 62 transitions. [2021-10-29 02:58:30,166 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2021-10-29 02:58:30,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-29 02:58:30,168 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:30,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:30,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-29 02:58:30,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:30,739 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-10-29 02:58:31,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:31,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 32 states and 51 transitions. [2021-10-29 02:58:31,459 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 51 transitions. [2021-10-29 02:58:31,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 02:58:31,460 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 21 iterations. [2021-10-29 02:58:31,467 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 02:58:31,945 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 02:58:31,948 INFO L565 CodeCheckObserver]: Invariant with dag size 28 [2021-10-29 02:58:31,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 02:58:31 ImpRootNode [2021-10-29 02:58:31,957 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 02:58:31,958 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 02:58:31,958 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 02:58:31,958 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 02:58:31,959 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:58:13" (3/4) ... [2021-10-29 02:58:31,962 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 02:58:31,970 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-10-29 02:58:31,974 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-29 02:58:31,975 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 02:58:31,975 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 02:58:31,975 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 02:58:32,038 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 02:58:32,038 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 02:58:32,040 INFO L168 Benchmark]: Toolchain (without parser) took 19083.17 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 65.6 MB in the beginning and 38.7 MB in the end (delta: 26.9 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. [2021-10-29 02:58:32,051 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 107.0 MB. Free memory is still 81.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 02:58:32,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.12 ms. Allocated memory is still 107.0 MB. Free memory was 65.4 MB in the beginning and 81.3 MB in the end (delta: -15.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 02:58:32,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.09 ms. Allocated memory is still 107.0 MB. Free memory was 81.3 MB in the beginning and 79.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 02:58:32,059 INFO L168 Benchmark]: Boogie Preprocessor took 27.38 ms. Allocated memory is still 107.0 MB. Free memory was 79.8 MB in the beginning and 78.9 MB in the end (delta: 869.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 02:58:32,059 INFO L168 Benchmark]: RCFGBuilder took 395.87 ms. Allocated memory is still 107.0 MB. Free memory was 78.9 MB in the beginning and 68.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 02:58:32,060 INFO L168 Benchmark]: CodeCheck took 18224.24 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 68.1 MB in the beginning and 40.7 MB in the end (delta: 27.4 MB). Peak memory consumption was 51.7 MB. Max. memory is 16.1 GB. [2021-10-29 02:58:32,061 INFO L168 Benchmark]: Witness Printer took 80.21 ms. Allocated memory is still 130.0 MB. Free memory was 40.7 MB in the beginning and 38.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 02:58:32,063 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.6s, OverallIterations: 21, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 11010048 SDtfs, 266344 SDslu, 1294400 SDs, 0 SdLazy, 20138072 SolverSat, 7496116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5455 GetRequests, 5074 SyntacticMatches, 167 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21945 ImplicationChecksByTransitivity, 11.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 567 NumberOfCodeBlocks, 567 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 547 ConstructedInterpolants, 0 QuantifiedInterpolants, 1897 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1807 ConjunctsInSsa, 187 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 759/839 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((s == 2 * a + 2 && a == 1) || (1 < counter && !(t == 5 && a == 2))) || (counter <= 1 && !(t == 3 && a == 1))) || (a == 2 && s == 9) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 107.0 MB. Free memory is still 81.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 309.12 ms. Allocated memory is still 107.0 MB. Free memory was 65.4 MB in the beginning and 81.3 MB in the end (delta: -15.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.09 ms. Allocated memory is still 107.0 MB. Free memory was 81.3 MB in the beginning and 79.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.38 ms. Allocated memory is still 107.0 MB. Free memory was 79.8 MB in the beginning and 78.9 MB in the end (delta: 869.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 395.87 ms. Allocated memory is still 107.0 MB. Free memory was 78.9 MB in the beginning and 68.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 18224.24 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 68.1 MB in the beginning and 40.7 MB in the end (delta: 27.4 MB). Peak memory consumption was 51.7 MB. Max. memory is 16.1 GB. * Witness Printer took 80.21 ms. Allocated memory is still 130.0 MB. Free memory was 40.7 MB in the beginning and 38.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-29 02:58:32,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fe594ca-7029-4871-87f7-fbbf256aae21/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request...